public Bitmap scalingBitmap(Bitmap bitmap, int newW, int newH) {

		int w = bitmap.getWidth();

		int h = bitmap.getHeight();

		float sx = (float) newW / w;

		float sy = (float) newH / h;

		Matrix matrix = new Matrix();

		matrix.postScale(sx, sy); // 长和宽放大缩小的比例

		return Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);

	}

GradientDrawable myGrad = (GradientDrawable) view.getBackground();

myGrad.setColor(Color.parseColor("#4bd1c9"));